| 日時: |
2013-11-20 14:00 - 15:00 |
| 場所: |
研究本館1階会議室1 |
| 会議名: |
Towards constructing realistic string models with D-branes |
| 連絡先: |
檜垣 徹太郎、thigaki-AT-post.kek.jp |
| 講演者: |
北澤敬章 氏 (首都大学) |
| 講演言語: |
英語 |
| アブストラクト: |
In the first part of the seminar some basic ingredients of the string models of particle physics are reviewed. The mechanisms to obtain chiral fermion spectrum at the intersection of D-branes or on the D-branes at a singularity are briefly explained. An attempt to construct a model with non-trivial Yukawa couplings is introduced. In the second part of the seminar two systems of D-branes without supersymmetry are introduced; the system of D-branes at non-supersymmetric orbifold fixed point, and the system of so called "brane supersymmetry breaking". The NS-NS tadpole problem of non-supersymmetric system is discussed. The possible spontaneous gauge symmetry breaking in two concrete models, corresponding to the above two systems, is discussed. |
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